Re: [PATCH v2 2/2] smb: client: flush deferred handles of other names before a hard link open

[Paulo Alcantara <pc@manguebit.org>]

Paulo Alcantara <pc@manguebit.org> writes:

> cifs_open() flushes an inode's deferred closes before opening a different
> name (hard link) of it, so the open can take a fresh lease rather than be
> reissued without one (see "smb: client: retry a hard link open without a
> lease").  cifs_get_hardlink_path() only triggered that flush when a cached
> handle had the same open flags as the new open, so a differently accessed
> name - written then read, say - skipped it and opened without a lease.
>
> Match on the name instead: flush when a cached handle for another name of
> the inode is open, so those opens keep lease caching too.
> ...

Sashiko found other potential issues with patch 1/2, which would require
a lot of rework to get it right.  Therefore I've applied this one as it
already fixes the bug reported by Giuseppe Piscitelli.